:root {
  --accent: #d92d20;
  --accent-dark: #b42318;
  --ink: #101828;
  --sub-ink: #475467;
  --bg: #fafafa;
  --card: #ffffff;
  --border: #e4e7ec;
}

html { scroll-behavior: smooth; }

body {
  font-family: "Noto Sans JP", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.hero {
  background:
    linear-gradient(135deg, rgba(16, 24, 40, 0.78), rgba(16, 24, 40, 0.55)),
    url("https://picsum.photos/seed/koto-hero/1800/900") center/cover no-repeat;
}

.car-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  background: var(--card);
  border: 1px solid var(--border);
}
.car-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -24px rgba(16, 24, 40, 0.25);
}

.price { color: var(--accent); }

.modal-backdrop {
  background: rgba(16, 24, 40, 0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.detail-img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-ok { background: #ecfdf3; color: #037847; }
.badge-ng { background: #fef3f2; color: #b42318; }